li {
    width: 600px;
    height: 30px;
    margin-bottom: 10px;
    font-size: 20px;
    color: #2196f3;
}

#top {

    width: 70%;
    margin-left: auto;
    margin-right: auto;
}

#main {
    width: 70%;
    margin-left: auto;
    margin-right: auto;
    margin-top: 80px;
    margin-bottom: 100px;
    border: 1px solid #e6e6e6;
    border-radius: 2px;
    box-shadow: inset 0 -5px 5px rgba(100, 100, 100, 0.2), 0 1px 1px rgba(255, 255, 255, 0.2);
}

#in {
    margin-left: 20px;
    margin-right: 20px;
}

a {
    text-decoration: none;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: .1px;
}

a:hover {
    outline: 1px;
}

#bottom {
    width: 800px;
    margin-left: auto;
    margin-right: auto;
}

p {
    text-align: center;
}